In world record, Bolt triumphed over air

July 26, 2013

Bolt_triumphedParis, Jul 26: Scientists today said Usain Bolt performed a feat of biomechanics when he ran 100m in a record 9.58sec at the 2009 World Championships in Berlin.

Crossing the line in a time that is still a world record meant Bolt had to muster "truly extraordinary" power and energy to overcome exceptional drag, they said.

Taking into account the altitude of the Berlin track, the temperature at the time of the race and the resistance caused by Bolt's 1.95m (six feet five inch), 94-kilo (207-pound) frame, the researchers calculated he had a drag coefficient of 1.2, which is less aerodynamic than the average human.

Bolt hit peak power after only 0.89 seconds, expending 81.58 kilojoules of energy by the time he finished the race.

But 92.21 percent of this energy was used to overcome air resistance, according to a paper appearing in the European Journal of Physics. Only 7.79 percent was used to achieve motion. After 41 strides, he crossed the line at 43.92 kilometres (27.29 miles) per hour.

"The enormous amount of work that Bolt developed in 2009, and the amount that was absorbed by drag, is truly extraordinary," said scientist Jorge Hernandez from the National Autonomous University of Mexcio.

"It is so hard to break records nowadays, even by hundredths of a second, as the runners must act very powerfully against a tremendous force which increases massively with each bit of additional speed they are able to develop.

"This is all because of the 'physical barrier' imposed by the conditions on Earth. Of course, if Bolt were to run on a planet with a much less dense atmosphere, he could achieve records of fantastic proportions."

The team compared Bolt's time in Berlin with his previous world-record time, of 9.69sec, set during the 2008 Beijing Olympics. In Berlin, he benefited from a tiny tailwind of 3.23 kph (2 mph), the researchers found.

Without this boost, he would have come in at 9.68sec, thus beating the previous mark by 0.01sec. The analysis was made from data provided by the International Association of Athletics Federations (IAAF), whose laser tracker recorded Bolt's position and speed every 0.1 of a second in Berlin.

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News Network
June 25,2020

New Delhi, Jun 25: India spinner Ravichandran Ashwin on Thursday called the 1983 World Cup win as the 'landscape' changing moment for the game of cricket in the country.

Today, India is celebrating the completion of the 37 years of the maiden World Cup triumph under the leadership of Kapil Dev.

"Today 37 years ago, changed the cricketing landscape in India. Thank you @therealkapildev and team for making the game a career for many of us today. Deeply indebted," Ashwin tweeted.

In 1983, in the finals between India and West Indies, the latter won the toss and opted to bowl first.

The Kapil Dev-led side managed to score just 183 runs as Andy Roberts took three wickets while Malcolm Marshall, Michael Holding, and Larry Gomes picked up two wickets each.

Defending 183, India did a good job of keeping a check on the Windies run flow, reducing the side to 57/3.

Soon after, the team from the Caribbean was reduced to 76/6 and India was the favourites from there on to win the title.

Mohinder Amarnath took the final wicket of Michael Holding to give India their first-ever World Cup title win.

In the finals, West Indies was bowled out for 140, and as a result, India won the match by 43 runs.

Kapil Dev lifting the trophy at the balcony of Lord's Cricket Ground still remains an image to savour for all the Indian fans.

In the finals, Mohinder Amarnath was chosen as the Man of the Match as he scored 26 runs with the bat and also picked up three wickets with the ball.

India has been the regular participant in the World Cup from its beginning to the latest edition. The first edition was held in 1975 and from there on, it has taken place after a span of every four years.

West Indies won the first two World Cup titles (1975, 1979) and was the runner-up in 1983. India has won the title two times, in 1983 and in 2011.

MS Dhoni captained the 2011 team to win their second title after 28 years. Australia has won the tournament five times (1987, 1999, 2003, 2007, and 2015).

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Agencies
February 7,2020

Sydney, Feb 7: "I received a message from Brett Lee," said former India cricketer Sachin Tendulkar on Friday when asked as to who recruited him to take part in the Bushfire relief fundraiser match.

Tendulkar will be coaching the Ponting XI in the upcoming Bushfire Bash on Sunday, February 9 at the Junction Oval.

"I received a message from Brett Lee. Brett said that Kevin (Roberts, Cricket Australia's chief executive) would like to be in touch with you. It was a no-brainer. From the moment I was asked, I said, 'yes I'm more than happy to come here," cricket.com.au quoted Tendulkar as saying.

Bushfire Bash was originally slated to be played at Sydney on Saturday but weather forecast prompted Cricket Australia to reschedule the game to ensure the best possible pitch and outfield conditions for the final of Big Bash League.

The match will be played to raise funds and all match profits will go to the Australian Red Cross Disaster Relief and Recovery Fund.

"This is an alarming situation, it's catastrophic - that's an understatement. You see the number of lives it has affected, not only humans but also wildlife which sometimes people don't talk about. That is equally important. I'm so happy I'm here in whatever way to support the cause, to raise money," Tendulkar said.

Ponting XI: Matthew Hayden, Justin Langer, Ricky Ponting (c), Elyse Villani, Brian Lara, Phoebe Litchfield, Brad Haddin (wk), Brett Lee, Wasim Akram, Dan Christian, Luke Hodge. Coach: Sachin Tendulkar

Gilchrist XI: Adam Gilchrist (c & wk), Shane Watson, Brad Hodge, Yuvraj Singh, Alex Blackwell, Andrew Symonds, Courtney Walsh, Nick Riewoldt, Peter Siddle, Fawad Ahmed (one more to be announced). Coach: Tim Paine

The Bushfire Bash exhibition match will be a 10-overs-per-side contest, with a five-over Powerplay, no bowling restrictions, and batters unable to get out from the first ball they face.

Bowlers will not have over limits, fielders can sub on and off as it suits, while captains will have the ability to sub batters in and out during an innings.

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News Network
January 14,2020

Sydney, Jan 14: Retired South African big-hitter AB de Villiers on Tuesday said efforts are on to ensure his comeback in the national team for the T20 World Cup in Australia, a plan in which his IPL form will play a crucial role.

Speaking to Cricket Australia's official website 'cricket.com.au', the 35-year-old swashbuckler said he would love to be back two years after calling it quits internationally. He is currently in Australia to play in the Big Bash League.

"I would love to. I've been talking to 'Bouch' (new South Africa coach Mark Boucher), (new director of cricket) Graeme Smith and (captain) Faf (du Plessis) back home, we're all keen to make it happen," he said.

"It's a long way away still, and plenty can happen – there's the IPL coming up, I've still got to be in form at that time. So I'm thinking of throwing my name in the hat and hoping that everything will work out," he added.

De Villiers, nonetheless, is keeping a check on his expectations.

"It's not a guarantee, once again. I don't want to disappoint myself or other people, so for now I'm just going to try and keep a low profile, try and play the best possible cricket that I can and then see what happens towards the end of the year," he said.

"There are a lot of players (involved with CSA) who I used to play with. Guys who understand the game, leaders of the team for many years" he said of the present dispensation.

"So it's much easier to communicate than what it used to be in the past. They understand what players go through – especially players that have played for 15 years internationally.

"It doesn't mean that everything is going to be sunshine and roses, but it's definitely a lot easier and it feels comfortable, the language that's being used and just the feel that everyone has at the moment in South Africa about the cricket," he added.

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